I love all these suggestions! I'm going to upload an album to my profile for anyone who cares to take a look to see if they can sex my silkies. One one was born 3/28 and the other 4/3. Both are white, not sure if you'll be able to tell them apart, but one has slightly larger "growths" (not sure what's thats called LOL) on each side of it's beak, like right below it's cheeks.